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Staff Software Engineer, Applied AI
GridUnity
Remote, United States
- $250,000 to $265,000 USD / year
We unite all grid interconnection stakeholders on a single platform that converts centralized data into actionable intelligence and accelerates the transition to a reliable, sustainable,…
Added 4 mins ago
Principal ASIC Engineer
Echodyne Corp
Kirkland, WA
Echodyne is seeking a Principal ASIC Engineer to join our fast-growing team.
Added 6 mins ago
UG
Principal Data Engineering - Remote
UnitedHealth Group
Minnetonka, MN
- $112,700 to $193,200 USD / year
The Principal Data Engineer is a senior individual contributor responsible for designing, building, and scaling enterprise data platforms and data pipelines. This role combines cloud-based…
Added 7 mins ago
Spring Migration Engineer
NTT DATA Americas, Inc.
Austin
NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization,…
Added 8 mins ago
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Frontend Engineer
True Talent Solutions Partners
New York, NY
- $185,000 to $300,000 USD / year
…You will own key frontend systems and turn real-time market data into intuitive tools for…
Added 8 mins ago
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Founding ML Research Engineer
True Talent Solutions Partners
San Francisco, CA
- $180,000 to $230,000 USD / year
- Evidence of owning AI product outcomes, including agent loops with real tool use, model orchestration, evaluation, and data improvement workflows.
Added 9 mins ago
Staff ML Engineer - Embodied AI Scaling Foundations
General Motors LLC
Remote, United States
The Data Scaling team owns the data flywheel for AV foundation model pre-training and SFT. We determine what data the AV needs in order to learn driving behaviors at scale, and we define…
Added 10 mins ago
Product Support Engineer
Samsung Electronics America, Inc.
Plano, TX
Position Objective: The DA Product Support Engineer is responsible for managing New Product Introduction (NPI) product quality evaluations, post-launch field quality support, and service…
Added 10 mins ago
Product Support Senior Engineer
Samsung Electronics America, Inc.
Plano, TX
The DA Product Support Senior Engineer is responsible for leading all DA Product engineers and controls each product engineers’ tasks. This senior role ensures New Product Introduction…
Added 10 mins ago
Experienced Engineer, Process Integration Engineering (PIE)
Samsung Austin Semiconductor, LLC.
Austin, TX
The 14nm Product PIE holds full accountability for the lifecycle of products for specific customers, spanning from the initial NPI phase through to high-volume mass production. To maximize…
Added 11 mins ago
Telecommunications Engineer 2 - San Antonio, TX
M.C. Dean, Inc
San Antonio, TX
Identify products, create bills of materials and equipment lists, and develop product data deliverables that meet project and system requirements.
Added 11 mins ago
Telecommunications Engineer 3 - Tysons, VA
M.C. Dean, Inc
Tysons, VA
Identify products, create bills of materials and equipment lists, and develop product data deliverables that meet project and system requirements.
Added 11 mins ago
Telecommunications Engineer 2 - Tysons, VA
M.C. Dean, Inc
Tysons, VA
Identify products, create bills of materials and equipment lists, and develop product data deliverables that meet project and system requirements.
Added 11 mins ago
Telecommunications Specialist 2 (Technical Specialist 2) - Tysons, VA
M.C. Dean, Inc
Tysons, VA
Identify products, create bills of materials and equipment lists, and develop product data deliverables that meet project and system requirements.
Added 11 mins ago
Senior Software Engineer, Ads Measurement
Roblox
San Mateo, CA
As a Senior Software Engineer on our Ads Measurement team, you will architect and build foundational ads systems that are capable of reliably serving Roblox’s massive scale. You will drive…
Added 11 mins ago
Telecommunications Specialist 2 (Technical Specialist 2) - San Antonio, TX
M.C. Dean, Inc
San Antonio, TX
Identify products, create bills of materials and equipment lists, and develop product data deliverables that meet project and system requirements.
Added 12 mins ago
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Senior Data Engineer
Absentia Labs
San Francisco, CA · Boston, MA · New York City, NY · Seattle, WA · San Jose, CA · Austin, TX
- $125,000 to $160,000 USD / year
As a Senior Data Engineer, you will own the design and evolution of Absentia Labs’ biomedical data platform. You will operate with a high degree of autonomy, making long-horizon…
Added 12 mins ago
Sr. Software Engineer, Linux Kernel
SpaceXSI
Seattle, WA
Experience with product security, OS/system hardening, and secure boot schemes
Added 19 mins ago
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Strategic Business Development Lead, Private Equity
Aleph
Remote, United States
- $159,800 to $225,000 USD / year
…portfolio companies evaluate Aleph. Think of this as a sales engineer role built around the planning and reporting needs of PE sponsors and their portfolio companies. You’ll act as the…
Added 24 mins ago
AI Engineer
NCR VOYIX
ATLANTA, GA
Collaborate with product managers, engineers, and other cross-functional teams to define data requirements, translate business needs into analytical solutions, and integrate models into…
Added 24 mins ago
Senior R&D Test Engineer - Electrical
Stryker Employment Company, LLC
Flower Mound, TX
As a Senior R&D Test Engineer, Electrical, you'll work closely with electrical, software, firmware, and systems engineers to evaluate new product designs, troubleshoot technical challenges,…
Added 25 mins ago
Industry Solutions Engineer, Splunk - Energy and Utilities
Cisco
Chicago, IL
Scale & Standardize GTM Assets: Build and maintain a Standard Outcome based blueprint to develop a Solutions Engineer Kit containing (discovery guide, Energy and Utility use cases, demo…
Added 26 mins ago
QA Test Engineer
Koniag Government Services
Washington, DC
…functional verification for solution capabilities. The QA Test Engineer turns requirements and acceptance criteria into Government-visible evidence across Appian logic, APIs, workflows,…
Added 26 mins ago
Generative AI Software Engineer
Koniag Government Services
Washington, DC
Investigate AI-related defects and coordinate corrections with Appian, data, security, API, and product teams.
Added 26 mins ago
Financial Operations Engineer
Koniag Government Services
Chantilly, VA
Koniag IT Systems, LLC a Koniag Government Services company, is seeking a Financial Operations Engineer to support KITS and our government customer. The position is Hybrid (remote and the…

SpaceXSI

Sr. Software Engineer, Linux Kernel

Seattle, WA, United States

$180,000 - $330,000 USD

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Job details

Pay: $180,000 - $330,000 USD
Experience: 5+ years of hands-on systems programming experience in C or C++
Posting language: English
Posted: Nov 5, 2026

Original job description

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today, SpaceX is actively developing the technologies to make this possible, with the ultimate goal of making life multiplanetary and expanding consciousness to the stars.

SpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. We're creating a powerful flywheel where more compute trains better models, better models power more useful products, and what we learn from people using those products shapes what we build next.

SR. SOFTWARE ENGINEER, LINUX KERNEL

At SpaceXSI, we design, build, and operate the largest AI supercomputers in the world, from the ground up. As a member of the Platform Core team, you will be responsible for the lowest layers of the software stack on the devices setting the pace for how fast we can push the frontier of AI. Our team’s software interfaces directly with the core hardware of the supercomputer and its network fabric. Our mission is to expose the full capability of that hardware - limited only by physics - to the rest of the stack, all while retaining the smallest, most robust footprint possible.

RESPONSIBILITIES:

Build and maintain the lean, high-reliability Linux-based operating system that underpins our supercomputer network fabric
Write (or rewrite) high-performance device drivers to extract the maximum physical capability from our network and compute hardware
Manage deployment, operation, and debugging of our platform in production, including: rigorous resolution and root-causing of anomalies to ensure the system is constantly improving in reliability and developing and constantly improving our tools for observability and configuration management
Collaborate with our hardware teams and external partners to design the next generation of supercomputer hardware – and then bring up our OS and software stack on it

BASIC QUALIFICATIONS:

5+ years of hands-on systems programming experience in C or C++

PREFERRED SKILLS AND EXPERIENCE:

Strong operating systems fundamentals (scheduling, memory management, I/O) - you must be able to articulate in extreme detail how a computer works, from the hardware all the way up to high-level applications
Understanding of computer networking, both in the host (OS stack) as well as common network devices like switches and routers
Excellent written and verbal communication skills
Deep knowledge of the Linux kernel and its networking stack - transferable experience with another production-grade kernel is okay, too!
Proficiency with debugging tools spanning kernel, network, and userspace (e.g., ftrace, perf, Wireshark/tcpdump, eBPF, gdb, and more)
Experience bringing up new hardware from scratch - you have flashed bare-metal software on a microcontroller with JTAG, or bootstrapped a Linux kernel and rootfs on new hardware
Demonstrated track record of developing and optimizing device/peripheral drivers - ideally for high-speed interfaces, or with advanced considerations like DMA and cache coherency
Understanding of major peripheral hardware interface standards (Ethernet, PCIe, I2C, SPI, etc.) - you can critically review a schematic, and debug these interfaces if needed
Experience with product security, OS/system hardening, and secure boot schemes

COMPENSATION AND BENEFITS:

$180,000 - $330,000 USD

Base salary is just one part of our total rewards package at SpaceXSI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks. SpaceXSI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice.

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More about this job

Skills

Linux
Debugging
BASIC
C
C++
Scheduling
Communication skills
Wireshark
Tcpdump

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